Gurobi 5.0.1 (linux64) logging started Sun Nov 18 03:11:28 2012 Optimize a model with 68 rows, 184 columns and 184 nonzeros Model has 134 quadratic constraints Presolve removed 0 rows and 2 columns Presolve time: 0.78s Presolved: 68 rows, 182 columns, 182 nonzeros Variable types: 134 continuous, 48 integer (47 binary) Root relaxation: objective 0.000000e+00, 23 iterations, 0.00 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time H 0 0 38.0000000 - - - 0s 0 0 0.00000 0 5 38.00000 0.00000 100% - 0s 0 0 0.00000 0 3 38.00000 0.00000 100% - 0s 0 0 0.00000 0 3 38.00000 0.00000 100% - 0s 0 2 0.00000 0 3 38.00000 0.00000 100% - 0s H 16 16 11.0000000 0.96500 91.2% 22.9 0s * 21 18 18 10.0000000 0.96500 90.3% 18.3 0s H 45 19 9.0000000 3.00000 66.7% 17.4 0s * 73 18 7 8.0000000 3.80000 52.5% 15.4 0s Cutting planes: Gomory: 1 Explored 137 nodes (2000 simplex iterations) in 0.84 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.000000000000e+00, best bound 8.000000000000e+00, gap 0.0%